$ git clone -n https://src.fedoraproject.org/rpms/glib-networking.git /var/lib/mock/f45-build-11176-428/root/chroot_tmpdir/scmroot/glib-networking
Cloning into '/var/lib/mock/f45-build-11176-428/root/chroot_tmpdir/scmroot/glib-networking'...
$ git fetch origin 17f4a2d67ad244ffafe218071a6c122c8c4d1986:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glib-networking
 * [new ref]         17f4a2d67ad244ffafe218071a6c122c8c4d1986 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17f4a2d Update to 2.90.0